Ventilation of manholes.

Author: Jones, G. W.
Additional Authors: Baker, E. S., Campbell, John,
Year: 1938
Document Type: BMRA
Issuing Agency: U.S. Dept. of the Interior, Bureau of Mines,
SUDOC: I 28.23:3412
Series: Report of investigations / United States. Bureau of Mines ;
Report Number: 3412
Subjects: Air
Manholes
Ventilation
Link: https://hdl.handle.net/2027/mdp.39015086556019

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